Home / 1,381,685.80-2,072,820.30-435,152.20

Finding the Fourth Proportional to 1,381,685.80, 2,072,820.30 and 435,152.20

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Solution

The fourth proportional to 1,381,685.80, 2,072,820.30 and 435,152.20 is: 652,820.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,381,685.80 : 2,072,820.30 = 435,152.20 : x
  2. Step 2: Convert to fraction form
    1,381,685.80/2,072,820.30 = 435,152.20/x
  3. Step 3: Cross multiply
    1,381,685.80x = 2,072,820.30 × 435,152.20
  4. Step 4: Simplify right side
    1,381,685.80x = 901,992,313,749.66
  5. Step 5: Solve for x
    x = 901,992,313,749.66/1,381,685.80
  6. Step 6: Final answer
    x = 652,820.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.